- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquids; rotary-piston, or oscillating-piston, positive-displacement pumps
- F04C 2/107 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
Patent holdings for IPC class F04C 2/107
Total number of patents in this class: 586
10-year publication summary
61
|
57
|
42
|
58
|
46
|
43
|
42
|
28
|
39
|
11
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Heishin Ltd. | 81 |
41 |
NETZSCH Pumpen & Systeme GmbH | 93 |
29 |
seepex GmbH | 54 |
27 |
Schlumberger Technology Corporation | 9690 |
24 |
National Oilwell Varco, L.P. | 1604 |
23 |
Baker Hughes Incorporated | 5689 |
19 |
Halliburton Energy Services, Inc. | 20165 |
17 |
Rotoliptic Technologies Incorporated | 19 |
15 |
Smith International, Inc. | 761 |
14 |
Roper Pump Company, LLC | 26 |
14 |
Abaco Drilling Technologies LLC | 35 |
13 |
Schlumberger Canada Limited | 6913 |
12 |
Baker Hughes, a GE Company, LLC | 2171 |
12 |
Services Petroliers Schlumberger | 5426 |
10 |
Schlumberger Technology B.v. | 4951 |
9 |
PCM Technologies | 30 |
9 |
Vogelsang GmbH & Co. KG | 54 |
9 |
NETZSCH- Mohnopumpen GmbH | 19 |
7 |
Penn United Technologies, Inc. | 39 |
7 |
Reme Technologies, LLC | 17 |
7 |
Other owners | 268 |